GRANULATED COMPOSITE FILLER FOR SILICATE WALL PRODUCTS BASED ON TRIPOLI AND SILICATE WALL PRODUCT Russian patent published in 2014 - IPC C04B20/02 C04B28/18 C04B111/27 

FIELD: construction.

SUBSTANCE: granulated composite filler for silicate wall products with size of 0.5-10.0 mm, comprising a core and a shell, where the core is produced by granulation of the mixture of jointly ground tripoli and sodium hydroxide to specific surface of 150-250 m²/kg, at their mass ratio of 0.70-0.95:0.05-0.30 with a binder - an aqueous solution of sodium silicate with density of 1.2-1.3 g/cm³ in the amount of 0.1-7.0 wt % of the mixture, and the shell is formed on the surface of the core by its rolling by a dry powdered mixture of jointly ground burnt lime and sodium fluosilicate at the mass ratio of 0.85-0.95:0.05-0.15, with subsequent hardening to strength of at least 2.1 MPa, and when after specified rolling they additionally spray 40% aqueous solution of glyoxal in the amount of 1.0-7.0 wt %. (per 100% substance) of the mass of shell components. The silicate wall product characterised by the fact that it contains the above granulated composite filler.

EFFECT: reduced heat conductivity of silicate products and increased water resistance.

2 cl, 1 ex, 1 tbl